Topband: 4SQ vs. 8 circle rcv

Lee STRAHAN k7tjr at msn.com
Wed Jan 13 15:06:45 EST 2016


Hi Guys, I have just updated my antenna comparison chart with some
enlightening plots that show antenna comparison in 3D. 
Interestingly enough my experience is as you get to the higher RDF antennas
each dB seems to be very important.
  Frank is quite right , One can never have enough receiving antennas.
Plots at   http://www.hizantennas.com/receiving_antennacomparison_char.htm

Lee  K7TJR  OR

-----Original Message-----
From: Topband [mailto:topband-bounces at contesting.com] On Behalf Of
donovanf at starpower.net
Sent: Wednesday, January 13, 2016 10:47 AM
To: topband <topband at contesting.com>
Cc: Bill Hider <n3rr at erols.com>; Mike Waters <mikewate at gmail.com>
Subject: Re: Topband: 4SQ vs. 8 circle rcv

Hi Mike, 


Beverages, four squares and 8-circle arrays are all excellent receiving
antennas. Based on much on the air experience, my W8JI passive 8-circle BSEF
arrays have much narrower beam width than my
580 foot Beverages and especially compared to the broad beam width my full
size transmitting 4-square. M y 8-circle arrays also have very low side lobe
levels. The 8-circle has a high RDF value because of its narrow beam width
and low side lobe levels. 


Every year we make many QSOs using the 8-circle array that could not have
been made with any of my other receiving antennas; however probably 99% of
my QSOs could have been easily made with either a Beverage or the 4-square.
It just depends on how important that one percent is to you. 


You can never have too many antennas... 


73
Frank
W3LPL 












----- Original Message -----

From: "Mike Waters" <mikewate at gmail.com>
To: "Bill Hider" <n3rr at erols.com>
Cc: "topband" <topband at contesting.com>
Sent: Wednesday, January 13, 2016 2:56:07 PM
Subject: Re: Topband: 4SQ vs. 8 circle rcv 

According to what I read there, there is little difference between the two. 
That seems odd. Was some information left out, or did I read the wrong .pptx
file? 

73, Mike
www.w0btu.com 

On Wed, Jan 13, 2016 at 1:23 AM, Bill Hider <n3rr at erols.com> wrote: 

> This presentation is titled: "Receiving Antennas" ... : 
> 
> http://www.contestuniversity.com/main/page_files.html
> 
> This presentation answers all of your stated questions and more. 
> 
_________________
Topband Reflector Archives - http://www.contesting.com/_topband 

_________________
Topband Reflector Archives - http://www.contesting.com/_topband


More information about the Topband mailing list